diff --git a/build.sh b/build.sh
index dec1115..ab18546 100644
--- a/build.sh
+++ b/build.sh
@@ -1,4 +1,4 @@
 #!/bin/bash
 
 mdbook build "$@"
-MDBOOK_OUTPUT__HTML__THEME=../theme MDBOOK_OUTPUT__HTML__ADDITIONAL_CSS='["../theme/nomicon.css", "../theme/language-picker.css"]' mdbook build en -d ../book/en
\ No newline at end of file
+MDBOOK_OUTPUT__HTML__THEME=../theme MDBOOK_OUTPUT__HTML__ADDITIONAL_CSS='["../theme/nomicon.css", "../theme/language-picker.css"]' MDBOOK_OUTPUT__HTML__SEARCH__USE_BOOLEAN_AND=true mdbook build en -d ../book/en
\ No newline at end of file
diff --git a/theme/index.hbs b/theme/index.hbs
index 999c438..d30dc9c 100644
--- a/theme/index.hbs
+++ b/theme/index.hbs
@@ -146,10 +146,10 @@
                 <div id="menu-bar-hover-placeholder"></div>
                 <div id="menu-bar" class="menu-bar sticky">
                     <div class="left-buttons">
-                        <label id="sidebar-toggle" class="icon-button" for="sidebar-toggle-anchor" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar">
+                        <label id="sidebar-toggle" class="icon-button" for="sidebar-toggle-anchor" title="展开/收起目录" aria-label="展开/收起目录" aria-controls="sidebar">
                             <i class="fa fa-bars"></i>
                         </label>
-                        <button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">
+                        <button id="theme-toggle" class="icon-button" type="button" title="更换主题" aria-label="更换主题" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list">
                             <i class="fa fa-paint-brush"></i>
                         </button>
                         <ul id="theme-list" class="theme-popup" aria-label="Themes" role="menu">
@@ -160,7 +160,7 @@
                             <li role="none"><button role="menuitem" class="theme" id="ayu">Ayu</button></li>
                         </ul>
                         {{#if search_enabled}}
-                        <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
+                        <button id="search-toggle" class="icon-button" type="button" title="全书搜索 (快捷键: s)" aria-label="显示/隐藏搜索框" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar">
                             <i class="fa fa-search"></i>
                         </button>
                         {{/if}}
@@ -272,17 +272,17 @@
                             }
                         </script>
                         {{#if print_enable}}
-                        <a href="{{ path_to_root }}print.html" title="Print this book" aria-label="Print this book">
+                        <a href="{{ path_to_root }}print.html" title="打印本书" aria-label="打印本书">
                             <i id="print-button" class="fa fa-print"></i>
                         </a>
                         {{/if}}
                         {{#if git_repository_url}}
-                        <a href="{{git_repository_url}}" title="Git repository" aria-label="Git repository">
+                        <a href="{{git_repository_url}}" title="Git repo" aria-label="Git repo">
                             <i id="git-repository-button" class="fa {{git_repository_icon}}"></i>
                         </a>
                         {{/if}}
                         {{#if git_repository_edit_url}}
-                        <a href="{{git_repository_edit_url}}" title="Suggest an edit" aria-label="Suggest an edit">
+                        <a href="{{git_repository_edit_url}}" title="提出修改建议" aria-label="提出修改建议">
                             <i id="git-edit-button" class="fa fa-edit"></i>
                         </a>
                         {{/if}}
@@ -320,13 +320,13 @@
                     <nav class="nav-wrapper" aria-label="Page navigation">
                         <!-- Mobile navigation buttons -->
                         {{#previous}}
-                            <a rel="prev" href="{{ path_to_root }}{{link}}" class="mobile-nav-chapters previous" title="Previous chapter" aria-label="Previous chapter" aria-keyshortcuts="Left">
+                            <a rel="prev" href="{{ path_to_root }}{{link}}" class="mobile-nav-chapters previous" title="上一章" aria-label="上一章" aria-keyshortcuts="Left">
                                 <i class="fa fa-angle-left"></i>
                             </a>
                         {{/previous}}
 
                         {{#next}}
-                            <a rel="next prefetch" href="{{ path_to_root }}{{link}}" class="mobile-nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                            <a rel="next prefetch" href="{{ path_to_root }}{{link}}" class="mobile-nav-chapters next" title="下一章" aria-label="下一章" aria-keyshortcuts="Right">
                                 <i class="fa fa-angle-right"></i>
                             </a>
                         {{/next}}
@@ -338,13 +338,13 @@
 
             <nav class="nav-wide-wrapper" aria-label="Page navigation">
                 {{#previous}}
-                    <a rel="prev" href="{{ path_to_root }}{{link}}" class="nav-chapters previous" title="Previous chapter" aria-label="Previous chapter" aria-keyshortcuts="Left">
+                    <a rel="prev" href="{{ path_to_root }}{{link}}" class="nav-chapters previous" title="上一章" aria-label="上一章" aria-keyshortcuts="Left">
                         <i class="fa fa-angle-left"></i>
                     </a>
                 {{/previous}}
 
                 {{#next}}
-                    <a rel="next prefetch" href="{{ path_to_root }}{{link}}" class="nav-chapters next" title="Next chapter" aria-label="Next chapter" aria-keyshortcuts="Right">
+                    <a rel="next prefetch" href="{{ path_to_root }}{{link}}" class="nav-chapters next" title="下一章" aria-label="下一章" aria-keyshortcuts="Right">
                         <i class="fa fa-angle-right"></i>
                     </a>
                 {{/next}}